Variant of NAICS 1997 - Goods and services

• 11-33 - Goods
• 23 - Construction
• 232 - Trade Contracting
• 2325 - Building Equipment Installation

23252 - Plumbing, Heating and Air-Conditioning Installation

This industry comprises establishments primarily engaged in installing primary water piping systems, plumbing fixtures, secondary piping systems for wet heating, natural gas pipe fitting for dry heating, and central air-conditioning equipment. The installation of sheet metal duct work is included.